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The highlighted part is incorrect as the right preposition to be used with the noun 'country' here is 'in'. II is incorrect as the use of the determiner 'any' is made to refer to one of many things; but here we have a plural noun 'countries'. Both I and III can make the sentence grammatically correct or meaningful. C is the right answer.
A particle moving in a straight line with uniform acceleration covers distances 5 m, 9 m, and 13 m in the 1st, 2nd, and 3rd second of motion respectivel...
What is the main difference between alternating current (AC) and direct current (DC)?
An object is placed at a distance of 10 cm in front of a double convex lens made of glass of refractive index 1.5. Both the radii of curvature of the le...
A block rests on another block, and the lower one is pulled with a horizontal force. If the coefficient of friction between them is μ, what is the maxi...
Sound travels fastest in which medium?
Which of the following is the principle behind the working of a hydraulic press?
Which of the following statements is true for a conductor in an electric field?
In a logic gate, the output is 1 only when at least one input is 1. This gate is:
The ratio of the total distance traveled by a body to the total time taken is its:
Which mirror always forms virtual, erect, and diminished image?